// GET: /<controller>/
public async Task <IActionResult> Raw([FromServices] IContentProvider contentProvider, string path)
{
var cp = ContentPath.FromUrlPath(path);
var content = contentProvider.Read(cp);
var mimeType = cp.Name.Select(MimeTypes.GetMimeType).ValueOr(MimeTypes.FallbackMimeType);
return(File(content.Value, mimeType));
}
public async Task <IViewComponentResult> InvokeAsync(ContentPath path)
{
var parts = path.Lineage.Select(_ => new Link {
Name = _.GetDisplayName("Home"), Href = _.VirtualPath
});
return(View(parts));
}
static Option <string> GetDirectoryReadme(IContentProvider provider, ContentPath path)
{
var candidates = new[] { "Readme.md", "Index.md" };
var markdown = candidates
.Select(_ => GetText(provider, path.CatDir(_)))
.FirstOrNone();
return(markdown);
}
static Option <string> GetText(IContentProvider provider, ContentPath path)
{
return(provider.Read(path).Select(_ =>
{
using (var r = new StreamReader(_))
{
return r.ReadToEnd();
}
}));
}
internal static GrepResult ParseGitGrepOutputLine(string line)
{
var p = line.Split(":", 3);
return(new GrepResult
{
Path = ContentPath.FromUrlPath(p[0]),
LineNumber = Int32.Parse(p[1]),
Text = p[2]
});
}
static Option <string> GetChildList(ContentPath directory, IEnumerable <ContentPath> children)
{
if (children.Any())
{
return(String.Join(String.Empty, children.Select(_ => $"* [{_.Name.ValueOr(_.ToString())}]({_.AbsoluteHref})\r\n")));
}
else
{
return(Option.None);
}
}
internal static ContentPath FromUrlPath(string path)
{
if (String.IsNullOrEmpty(path))
{
return(ContentPath.Root);
}
var cp = new ContentPath(path.Split(separator, StringSplitOptions.RemoveEmptyEntries)
.Select(WebUtility.UrlDecode));
return(cp);
}
public async Task <IActionResult> Grep(
[FromServices] IContentProvider contentProvider,
[FromServices] IProcessRunner runner,
[FromServices] IMarkdownRenderer renderer,
[FromServices] IContentGrep grep,
[FromQuery] string q)
{
var result = await grep.Grep(q);
var markdown = result.Select(_ => $"* [{_.Path}]({_.Path.AbsoluteHref}#{_.LineNumber})({_.LineNumber}): `{_.Text.Truncate(256)}`").JoinLines();
return(await MarkdownView(renderer, ContentPath.FromUrlPath("/"), markdown));
}
public Option <Stream> Read(ContentPath path)
{
var fsPath = path.GetFileSystemPath(rootDirectory);
if (File.Exists(fsPath))
{
return(File.OpenRead(fsPath));
}
else
{
return(Option.None);
}
}
static bool IsText(IContentProvider contentProvider, ContentPath contentPath)
{
var reader = contentProvider.Read(contentPath);
if (!reader.HasValue)
{
return(true);
}
using (var r = reader.Value)
{
var b = Read(r, 4096);
return(!b.Any(_ => _ == 0) && b.Any(_ => _ == '\n'));
}
}
public IDisposable NotifyChange(ContentPath contentPath, Action <ContentPath> onChanged)
{
var fsPath = this.GetFileSystemPath(contentPath);
var directoryToWatch = fsPath = (Directory.Exists(fsPath)) ? fsPath : Path.GetDirectoryName(fsPath);
var w = new FileSystemWatcher(directoryToWatch);
w.BeginInit();
FileSystemEventHandler changed = (s, e) =>
{
onChanged(contentPath);
};
w.Changed += changed;
w.EndInit();
w.EnableRaisingEvents = true;
return(w);
}
public IEnumerable <ContentPath> GetChildren(ContentPath path)
{
var fsPath = GetFileSystemPath(path);
if (Directory.Exists(fsPath))
{
var c = new DirectoryInfo(fsPath).GetFileSystemInfos()
.OrderByDescending(_ => _ is DirectoryInfo).ThenBy(_ => _.Name)
.Where(_ => !_.Name.Equals(".git"))
.Select(_ => GetChildPath(path, _))
.ToList();
return(c);
}
else
{
return(Enumerable.Empty <ContentPath>());
}
}
public bool Exists(ContentPath path)
{
var fsPath = GetFileSystemPath(path);
return(File.Exists(fsPath) || Directory.Exists(fsPath));
}
static ContentPath GetChildPath(ContentPath p, FileSystemInfo c)
{
return(p.CatDir(c.Name));
}
string GetFileSystemPath(ContentPath path)
{
return(path.GetFileSystemPath(rootDirectory));
}
async Task <IActionResult> MarkdownView(IMarkdownRenderer renderer, ContentPath path, Option <string> markdown)
{
var result = await renderer.Render(markdown.ValueOr("empty"));
return(View("Index", new ContentModel(path, result.Title.ValueOr(path.GetDisplayName("Home")), result.Body)));
}
public static Task <RendererResult> Render(this IRenderer renderer, ContentPath path, string content)
{
return(renderer.Render(path, new MemoryStream(System.Text.Encoding.UTF8.GetBytes(content))));
}
public bool IsAncestorOrSelf(ContentPath child)
{
return(parts.SequenceEqual(child.parts.Take(parts.Length)));
}
public async Task <Option <string> > GetRecentChanges(ContentPath path)
{
var r = await git.Run(new[] { "log", "-100", $"--pretty=format:* [%ar: %s]({path.AbsoluteHref}?log=--stat+-p+-1+-U+%H), by %an", "--", git.GetPath(path) });
return(r.Success ? UrlEncode(r.Output) : Option <string> .None);
}
public async Task <IActionResult> Stats(
[FromServices] IMarkdownRenderer renderer,
[FromServices] IGit git,
[FromQuery] string q,
[FromQuery] string since,
[FromQuery] string until,
[FromQuery] string author
)
{
var logArgs = Utils.SplitArguments(q).Concat(new[]
{
Param(nameof(since), since),
Param(nameof(until), until),
Param(nameof(author), author)
}.WhereValue()).ToArray();
var c = git.GetChanges(logArgs);
var byName = c.GroupBy(_ => _.Commit.author.Email)
.Select(_ => new
{
User = _.Key,
AddedLines = _.Sum(_c => _c.Stats.AddedLines),
RemovedLines = _.Sum(_c => _c.Stats.RemovedLines)
})
.OrderByDescending(_ => _.AddedLines + _.RemovedLines)
.ToList();
var byPath = c
.SelectMany(_ => ContentPath.FromUrlPath(_.Stats.Path).Lineage
.Select(dir => new { Path = dir, Change = _ }))
.GroupBy(_ => _.Path)
.Select(_ => new
{
Path = _.Key,
AddedLines = _.Sum(_c => _c.Change.Stats.AddedLines),
RemovedLines = _.Sum(_c => _c.Change.Stats.RemovedLines)
})
.OrderByDescending(_ => _.AddedLines)
.Take(100)
.ToList();
var markdown = $@"
<form action=""/stats"" method=""get"" >
<input name=""since"" placeholder=""since yyyy-mm-dd"" value={Attribute(since)} />
<input name=""until"" placeholder=""until yyyy-mm-dd"" value={Attribute(until)} />
<input name=""author"" placeholder=""author"" value={Attribute(author)} />
<input type=""submit"" />
</form>
## By User
{byName.MarkdownTable()
.With("User", _ => $"[{_.User}](/stats?author={_.User})")
.With("Added Lines", _ => _.AddedLines)
.With("Removed Lines", _ => _.RemovedLines)
}
## By Path
{byPath.MarkdownTable()
.With("Path", _ => $"[{_.Path}](/{_.Path})")
.With("Added Lines", _ => _.AddedLines)
.With("Removed Lines", _ => _.RemovedLines)
}
";
return(await MarkdownView(renderer, new ContentPath(), markdown));
}
private static async Task NotifyContentChanged(Microsoft.AspNetCore.Http.WebSocketManager webSockets, IContentProvider contentProvider, ContentPath contentPath)
{
var webSocket = await webSockets.AcceptWebSocketAsync();
using (contentProvider.NotifyChange(contentPath, cp => {
webSocket.SendAsync(UTF8Encoding.UTF8.GetBytes(cp.ToString()), WebSocketMessageType.Text, true, CancellationToken.None);
}))
{
await WaitForClose(webSocket);
}
}
public static bool IsImage(this ContentPath cp)
{
return(cp.IsExtension(new[] { ".png", ".svg", ".jpg", ".jpeg" }));
}
Option <string> GetSourceAsMarkdown(IContentProvider contentProvider, IHistory history, ContentPath path)
{
return(string.Join(hr, new[]
{
GetText(contentProvider, path).Select(_ => $@"```{path.ExtensionWithoutDot.ValueOr(String.Empty)}
{_}
```"
),
history.GetRecentChanges(path).Result
}.WhereValue()));
}
static string GetMarkdown(IContentProvider content, IHistory history, ContentPath path)
{
return(String.Join(hr, new[] { GetText(content, path), history.GetRecentChanges(path).Result }.WhereValue()));
}
static string GetDirectoryMarkdown(IContentProvider provider, IHistory history, ContentPath path, IEnumerable <ContentPath> children)
{
return(String.Join(hr, new[]
{
GetChildList(path, children),
GetDirectoryReadme(provider, path),
history.GetRecentChanges(path).Result
}.WhereValue()));
}
public static string GetPath(this IGit git, ContentPath path)
{
return(path.IsRoot
? "."
: String.Join("/", path.Parts));
}
// GET: /<controller>/
public async Task <IActionResult> Index(
[FromServices] IContentProvider contentProvider,
[FromServices] IMarkdownRenderer renderer,
[FromServices] IHistory history,
[FromServices] IGit git,
[FromQuery] string log,
[FromQuery] string q,
string path)
{
var contentPath = ContentPath.FromUrlPath(path);
if (this.HttpContext.WebSockets.IsWebSocketRequest)
{
await NotifyContentChanged(this.HttpContext.WebSockets, contentProvider, contentPath);
return(Ok());
}
if (log != null)
{
var r = await git.Run(new[] { "log" }.Concat(Utils.SplitArguments(log)).Concat(new[] { "--", git.GetPath(contentPath) }));
return(await MarkdownView(renderer, contentPath, AsCode(r.Output)));
}
if (q != null)
{
var pretty = $"--pretty=format:* [%ar: %s]({git.GetPath(contentPath)}?log=--stat+-p+-1+-U+%H), by %an";
var grepLog = await git.Run(new[] { "log", pretty, "-100", "-S", q, git.GetPath(contentPath) });
var grepText = git.GrepOutputToMarkdown((await git.Run(new[] { "grep", "-I", "-n", q })).Output);
return(await MarkdownView(renderer, contentPath, grepLog.Output + hr + grepText));
}
var children = contentProvider.GetChildren(contentPath);
if (children.Any())
{
if (!this.HttpContext.Request.Path.Value.EndsWith("/"))
{
var url = Microsoft.AspNetCore.Http.Extensions.UriHelper.GetEncodedUrl(this.HttpContext.Request);
var redirectTo = url + "/";
return(this.Redirect(redirectTo));
}
return(await MarkdownView(renderer, contentPath, GetDirectoryMarkdown(contentProvider, history, contentPath, children)));
}
if (contentPath.IsExtension(new[] { ".md" }))
{
return(await MarkdownView(renderer, contentPath, GetMarkdown(contentProvider, history, contentPath)));
}
var mdFile = contentPath.CatName(".md");
if (mdFile.HasValue && contentProvider.Exists(mdFile.Value))
{
return(await MarkdownView(renderer, contentPath, GetText(contentProvider, mdFile.Value)));
}
if (IsText(contentProvider, contentPath))
{
return(await MarkdownView(renderer, contentPath, GetSourceAsMarkdown(contentProvider, history, contentPath)));
}
contentProvider.Pull();
// raw file
return(await Raw(contentProvider, path));
}
